312962 ÷ 84 
Our goal is to divide 312962 by 84.

Step 1:
3 divided by 84 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 84

Step 2:
If we divide 31 by 84, we get 0 and a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Fetch the next digit (2) from the dividend, attach it to 31 and continue: 312 / 84

On to step 3:
When dividing 312 by 84, we get 3 with a remainder of 60.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 252 from 312 to get 60.
Append the next digit (9) from the dividend to 60 and continue with: 609 / 84

Step 4:
84 goes into 609 7 times with a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 37.0
Deduct 588 from 609 and we're left with 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 84

Going ahead to step 5:
If we divide 216 by 84, we get 2 and a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 372.0
Deduct 168 from 216 and we're left with 48.
Grab the next digit (2) from the dividend, add it to 48, then carry on: 482 / 84

Moving on to step 6:
84 can be fit into 482 5 times, resulting in a remainder of 62.
Use 5 as the next digit of our solution. 
Result so far: 3725.0
Subtract 420 from 482 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 7:
The number 84 fits into 620 7 times, leaving a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 3725.7
If we take 588 away from 620, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
84 can be fit into 320 3 times, resulting in a remainder of 68.
Record the quotient 3 as the next digit in the result. 
Result so far: 3725.73
Subtract 252 from 320 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 9:
If we divide 680 by 84, we get 8 and a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 3725.738
If we take 672 away from 680, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
84 goes into 80 0 times with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 3725.738
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 11:
If we divide 800 by 84, we get 9 and a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 3725.73809
If we subtract 756 from 800, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 12:
When dividing 440 by 84, we get 5 with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 3725.738095
Deduct 420 from 440 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
84 can be fit into 200 2 times, resulting in a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 3725.7380952
Subtracting 168 from 200 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 14:
If we divide 320 by 84, we get 3 and a remainder of 68.
Write down 3 as next digit of the result. 
Result so far: 3725.73809523
Deduct 252 from 320 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

The quotient of the division is 3725.73809523, and the remainder is 6.8e-08.